Switch Safe Browsing's metadata from string to struct.

chrome/browser/renderer_host/safe_browsing_resource_throttle.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_SAFE_BROWSING_RESOURCE_THROTTLE_H_
 #define CHROME_BROWSER_RENDERER_HOST_SAFE_BROWSING_RESOURCE_THROTTLE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 64 matching lines @@
 
   // content::ResourceThrottle implementation (called on IO thread):
   void WillStartRequest(bool* defer) override;
   void WillRedirectRequest(const net::RedirectInfo& redirect_info,
                            bool* defer) override;
   void WillProcessResponse(bool* defer) override;
 
   const char* GetNameForLogging() const override;
 
   // SafeBrowsingDabaseManager::Client implementation (called on IO thread):
-  void OnCheckBrowseUrlResult(const GURL& url,
-                              safe_browsing::SBThreatType result,
-                              const std::string& metadata) override;
+  void OnCheckBrowseUrlResult(
+      const GURL& url,
+      safe_browsing::SBThreatType result,
+      const safe_browsing::ThreatMetadata& metadata) override;
 
  protected:
   SafeBrowsingResourceThrottle(const net::URLRequest* request,
                                content::ResourceType resource_type,
                                safe_browsing::SafeBrowsingService* sb_service);
 
  private:
   // Describes what phase of the check a throttle is in.
   enum State {
     // Haven't started checking or checking is complete. Not deferred.
@@ skipping 74 matching lines @@
 
   scoped_refptr<safe_browsing::SafeBrowsingDatabaseManager> database_manager_;
   scoped_refptr<safe_browsing::SafeBrowsingUIManager> ui_manager_;
   const net::URLRequest* request_;
   const content::ResourceType resource_type_;
   net::BoundNetLog bound_net_log_;
 
   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingResourceThrottle);
 };
 #endif  // CHROME_BROWSER_RENDERER_HOST_SAFE_BROWSING_RESOURCE_THROTTLE_H_